/Engine/Source/Runtime/AudioExtensions/Public/IAudioExtensionPlugin.h
This class represents instances of a plugin that will process spatialization for a stream of audio. Currently used to process a mono-stream through an HRTF spatialization algorithm into a stereo stream. This algorithm contains an audio effect assigned to every VoiceId (playing sound instance). It assumes the effect is updated in the audio engine update loop with new position information.
class IAudioSpatialization